;
变;
The kind of mating, using as one parent a known homozygous recessive, is called a testcross.
这种杂交即利用一个已知
纯合隐性作为一个亲本杂交，称为测交。
,纯合子The kind of mating, using as one parent a known homozygous recessive, is called a testcross.
这种杂交即利用一个已知纯合隐性作为一个亲本杂交，称为测交。
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